JPH0248744A - Operation monitoring system - Google Patents

Abstract

PURPOSE:To know the cause of trouble by seeing the contents of a non-volatile memory even in the case of the trouble of terminal equipment by saving an abnormal state occurred in the equipment in the non-volatile memory backed up by a battery installed in an operation monitoring board. CONSTITUTION:When an operation monitoring processor 7 detects abnormality in a signal group during monitoring, it saves this result in the non-volatile memory 9. The non-volatile memory 9 is a memory backed up by the battery 8, and the contents of the non-volatile memory 9 does not disappear even the power of the equipment is switched off. A CPU 1 picks up detailed information by an interface 15, and performs abnormality processing as the terminal equipment, and besides, if the CPU 1 does not operate normally already, an operation monitoring board is detached, and the contents of the non-volatile memory 9 is read by other normal equipment, and the state how the abnormality occurred is known. Thus, the cause analysis of system trouble becomes possible.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operation monitoring method, and particularly to an operation monitoring method for a terminal device in an information processing apparatus.

Even if conventional terminal devices have a function to monitor the status in the event of a failure, if the failure causes the entire device to go down and become inoperable, an abnormality will be detected. The disadvantage is that the cause cannot be investigated because the condition cannot be seen.

SUMMARY OF THE INVENTION An object of the present invention is to provide an operation monitoring system that makes it possible to investigate the cause of an abnormal state even if the entire device becomes inoperable due to system failure.

According to the present invention, there is provided an operation monitoring method for monitoring the state of an electronic device by an operation monitoring processor, which is configured to be detachable from the system and store monitoring information collected by the operation monitoring processor. An operation monitoring method is provided in which a non-volatile memory is provided, the non-volatile memory is removed from a system and installed in another system, and the cause of a system failure can be analyzed using the contents of this non-volatile memory. can get.

EXAMPLES Next, the present invention will be described in detail with reference to the drawings showing examples of the present invention.

Figure 2 shows the CP of a system to which an embodiment of the present invention is applied.
U board 1, operation monitoring board 2, memory board 3, IO
Boards such as a control board 4 are connected by a motherboard 5. Further, power is supplied from the power supply section to each board via the motherboard 5.

FIG. 1 shows a block diagram in one embodiment of the present invention.

Under normal conditions, the operation monitoring processor 7 is connected to the CPU board 1.
All status monitoring signals such as the status monitoring signal group 13 from the memory board 3, the status monitoring signal group 12 from the power supply section 6, and the status monitoring signal group 10 from the motherboard 5 are monitored. .

Here, when the operation monitoring processor 7 detects an abnormality in the signal group being monitored, the result is saved in the nonvolatile memory 9. The non-volatile memory 9 is backed up by the battery 8 and can be used even when the power of the device is turned off.
The contents of non-volatile memory 9 do not disappear.

When the operation monitoring processor 7 completes the saving to the nonvolatile memory 9, it notifies the CPU board 1 by using the emergency notification signal 14. In response to this, the CPU board 1 obtains detailed information of the operation monitoring processor 7 through the interface 15, and performs abnormality processing as a terminal device.

However, when the operation monitoring processor 7 sends an emergency notification to the CPU board 1, if the CPU board 1 is already not operating normally, the abnormal state of the device cannot be known at this point. It is possible to turn off the power to the device, remove the operation monitoring board, insert it into another normal device, read the contents of the nonvolatile memory 9, and know the state when an abnormality occurs.

1. As explained above, according to the present invention, C
The operation monitoring board, which has a battery-backed non-volatile memory attached to the operation monitoring processor, which has the function of monitoring the operating status of the PU, the occurrence of errors in the memory, and the status of the equipment, such as abnormalities in the power supply unit, enables the operation of the equipment. By saving the abnormal state that has occurred in this non-volatile memory, even if the terminal device fails, the operation monitoring board can be removed, installed on another normal device, and the contents of this non-volatile memory can be viewed to identify the cause of the failure. It has the effect of being able to know.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a system block diagram to which the embodiment of FIG. 1 is applied. Explanation of symbols of main parts 2...Operation monitoring board 7...Operation monitoring processor 9...Non-volatile memory Fig. 1 11+ Fig. 2

Claims (1)

[Claims] (1) An operation monitoring method in which the state of an electronic device is monitored by an operation monitoring processor, which includes a nonvolatile memory that is removably attached to the system and stores monitoring information collected by the operation monitoring processor; Remove non-volatile memory from one system and install it in another,
This operation monitoring method is characterized in that it is possible to analyze the causes of system failures using the contents of this nonvolatile memory.